[U-Boot] [PATCH v2] drivers:usb: use get|put_unaligned_le16
Piotr Wilczek
p.wilczek at samsung.com
Wed Jun 26 08:22:05 CEST 2013
This patch use get|put_unaligned_le16 to access structure data
to avoid data abort on some ARM platforms.
Signed-off-by: Piotr Wilczek <p.wilczek at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
CC: Marek Vasut <marex at denx.de>
---
Changes for v2:
- rebased on top of u-boot-usb/master
drivers/usb/gadget/f_mass_storage.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 45bc132..5b348d7 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -577,9 +577,9 @@ static int fsg_setup(struct usb_function *f,
{
struct fsg_dev *fsg = fsg_from_func(f);
struct usb_request *req = fsg->common->ep0req;
- u16 w_index = le16_to_cpu(ctrl->wIndex);
- u16 w_value = le16_to_cpu(ctrl->wValue);
- u16 w_length = le16_to_cpu(ctrl->wLength);
+ u16 w_index = get_unaligned_le16(&ctrl->wIndex);
+ u16 w_value = get_unaligned_le16(&ctrl->wValue);
+ u16 w_length = get_unaligned_le16(&ctrl->wLength);
if (!fsg_is_set(fsg->common))
return -EOPNOTSUPP;
@@ -617,7 +617,7 @@ static int fsg_setup(struct usb_function *f,
"unknown class-specific control req "
"%02x.%02x v%04x i%04x l%u\n",
ctrl->bRequestType, ctrl->bRequest,
- le16_to_cpu(ctrl->wValue), w_index, w_length);
+ get_unaligned_le16(&ctrl->wValue), w_index, w_length);
return -EOPNOTSUPP;
}
--
1.7.9.5
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